ultra-heavy-load, high-rigidity lm guide models nr and nrs nrs series.pdf · a. dimensions of the...
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a-250
LM Guide®
Ultra-heavy-load, High-rigidity LM Guide Models NR and NRS
Structure and Features
LM rail
LM block
Inner seal
EndplateEnd seal
Side sealBall
Oil valveGrease nipple
90°
45°
Radial type Model NR
45°
45°
4-way equal-load type Model NRS
Cross section
Balls roll in four rows of raceways precision-ground on an LM rail and an LM block, and end-
plates incorporated in the LM block allow the balls to circulate. The raceways are cut into
deep grooves that have a radius closer to that of the balls than in the conventional design,
using special equipment and an extremely precise cutting technique. This design allows high
rigidity, high vibration/impact resistance and high damping capacity, all of which are required
for machine tools, thus making these models capable of bearing ultra-heavy loads.
●Improved damping capacityWhile the machine tool (equipped with NR or NRS) is not cutting a workpiece during operation,
the LM Guide travels normally and smoothly. While the machine tool is cutting the workpiece,
the cutting load is applied to the LM Guide to increase and the contact area between the balls
and the raceway, allowing an appropriate mixture of rolling and sliding motions to be achieved.
Accordingly, the friction resistance is increased and the damping capacity is improved.
Since the absolute slip during the rolling and sliding motion is insignificant, it causes little wear
and does not affect the service life.
●Highly rational LM GuideThe excessively large differential slip occurring in a Gothic-arch groove does not happen with
these models. They smoothly travel and achieve high positioning accuracy during fast feeding.
During the cutting operation, appropriate slip occurs according to the cutting load, the rolling
resistance is increased and the damping capacity is increased. Thus, models NR and NRS are
highly rational LM Guides.
●High rigidityTo increase the rigidity of the LM block and the LM rail, which may deteriorate the overall rigid-
Fig. 1 Structure of Models NR and NRS
a. Dimensions of the LM Guides
a-251
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a251ity of the LM Guide in the reverse-radial and lateral directions, made full use of FEM to
achieve optimal design within the limited dimensional range.
For both the radial type model NR and the four-way equal load type model NRS, offers
two types with the same dimensions and different characteristics. It allows you to select the
desired type according to the application.
●Ultra heavy loadSince the curvature of the raceway is approximated to the ball diameter, the ball contact area
under a load is increased and the LM Guide is capable of receiving an ultra-heavy load.
Types and FeaturesModels NR-R/NRS-R Models NR-A/NRS-A Models NR-B/NRS-B
Models NR-LR/NRS-LR Models NR-LA/NRS-LA Models NR-LB/NRS-LB
W
L L L
The LM block has a smaller
width (W) and is equipped with
tapped holes.
Suitable for places where space
for the table width is limited.
The flange of the LM block
has tapped holes.
The flange of the LM block
has through holes. Used in
places where the table
cannot have through holes
for mounting bolts.
The LM block has the same
sectional shape as models
NR-R/NRS-R, but has a longer
overall LM block length (L)
and a greater rated load.
The LM block has the same
sectional shape as models
NR-A/NRS-A, but has a longer
overall LM block length (L)
and a greater rated load.
The LM block has the same
sectional shape as models
NR-B/NRS-B, but has a longer
overall LM block length (L)
and a greater rated load.
●Increased Rigidity in theLateral and Reverse-ra-dial Directions
Since with LM Guide model NR, the distance
"H" between the rail bottom and the lower-
groove balls (balls receiving lateral loads) is
short, the ratio between the rail width "W" and
the distance "H" is small, and the distance "T"
between the LM rail mounting bolt seat and
the LM rail bottom is short. Accordingly, the
deformation of the LM rail under a lateral load is minimal, and the rigidity in the lateral direc-
tions is increased.
Also, since the dimension "B" of the LM block is short and the thickness "A" is large, the lateral
extension of the LM block under a reverse-radial or lateral load is minimized. This structure
allows the rigidity in the reverse-radial direction to be increased.
In comparison to the old model with the same model number, the ball diameter of NR is smaller
and the effective number of balls is approximately 1.3 times greater, thus to increase static
rigidity.
a-252
Characteristics of Models NR and NRS●Increased Rigidity inMajor Load Directions
The structure with a contact angle of 90゜
used in model NR differs from that with a 45゜
contact angle also in rigidity. Under the
same radial load P, the displacement in the
radial direction with model NR having a con-
tact angle of 90゜is 44% less than the 45 .゚
The figure on the right shows the difference
in radial load and displacement. Accordingly,
where high rigidity in the radial direction is
required, model NR is more advantageous.
P
Displacement in radial directionδ’1
Displacementδ1
P P1
Displacement in radial directionδ’2
Displacementδ2
45° 90°
Contact angle of 90° (Model NR)
Contact angle of 45°
Fig. 2 Displacement under a Radial Load
A
W
HT
B
Radial type contact structure
Fig. 4 Cross Section of Model NR
Load and displacement when contact angles are not the same (Da = 6.35 mm) (displacement per 24 balls)
Displacement(μm)
25
20
15
10
5
0 2 4 6 8 10
When the contact angle is 45°
When the contact angle is 90°
Applied load (kN)
Fig. 3 Radial Load and Displacement (normal clearance, no preload)
a. Dimensions of the LM Guides
a-253
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a253●Comparison of Contact Surface and Internal Stress
between Different Contact StructuresAs shown in Fig. 5, the contact area and the internal stress of a ball greatly vary depending on
the shape of contact surface.
With the conventional roller guide, the effective length is shorter than the apparent value due
to the retention of the rollers. Additionally, the change of stress distribution in the contact
section caused by a mounting error significantly affects the differential slip.
0.51Da 0.52Da 0.55Da
d2d1
1.8
d2 d1 d1d2
d1d2d2 d1d2 d1
3.61.2 1.0 1.0
< ≒ d1≒d2 d1≪d2
Change in differential slip: none
Change in differential slip: none
Change in differential slip: large
Change in differential slip: large
Contact stress distribution 1
Contact stress distribution 2
Normal clearance contact area
Contact area under a preload
Change in contact surface due to a mounting error
Fig. 5 Comparison of Contact Surface (φ6.350 ball, φ6 x 6Rroller)
When the LM block of model NR receives loads in the reverse-radial and lateral directions
simultaneously, the equivalent load is obtained from the equation below.
PE=X・PL+Y・PTwhere
PE :Equivalent load (N)
・Reverse-radial direction
・Lateral direction
PL :Reverse-radial load (N)
PT :Lateral load (N)
X/Y axes:Equivalent factor (see table 2)
a-254
Rated Loads in All DirectionsModels NR/NRS are capable of receiving
loads in all four directions: radial, reverse-
radial and lateral directions.
The basic load ratings of model NR are indi-
cated by the values in the radial directions in
Fig. 6, and their actual values are provided in
the dimensional table for NR/NRS. The val-
ues in the reverse-radial and lateral direc-
tions are obtained from table 1.
The basic load ratings of model NRS are
equal in al l the four directions (radial ,
reverse-radial and lateral directions), and
their actual values are provided in the dimen-
sional table for NR/NRS.
CTC0T
CTC0T
CLC0L C0
CPL PR
PT PT
Fig. 6
Table 1 Rated Loads in All Directions with Model NR
Direction
Radial directionReverse-radialdirection
Lateral direction
C
CL=0.78C
CT=0.48C
Basic dynamic load rating Basic static load rating
C0
C0L=0.71C0
C0T=0.45C0
Table 2 Equivalent Factor of Model NR
PE
Equivalent load in reverse-radial direction
Equivalent load in lateral direction
X
1.0
0.5
Y
2
1
When the LM block of model NRS receives loads in the reverse-radial and lateral directions
simultaneously, the equivalent load is obtained from the equation below.
PE=PR(PL)+PTwhere
PE :Equivalent load (N)
・Radial direction
・Reverse-radial direction
・Lateral direction
PR :Radial load (N)
PL :Reverse-radial load (N)
PT :Lateral load (N)
Equivalent Load
a. Dimensions of the LM Guides
a-255
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a255
Options
offers various dust prevention accessories for models NR and NRS.When a dust prevention accessory is required, specify the desired item with the corresponding
symbol provided in table 3 (for details of dust prevention accessories, see pages a-24 and a-
25).
For supported model numbers for dust prevention accessories and overall LM block length with
dust prevention accessories attached (dimension L), see page a-274.
Dust Prevention Accessories
Table 3 Symbols of Dust Prevention Accessories for Models NR and NRS
Symbol
UU
SS
DD
ZZ
KK
SSHH
DDHH
ZZHH
KKHH
Dust prevention accessory
With end seal
With end seal + side seal + inner seal
With double seals + side seal + inner seal
With end seal + side seal + inner seal + metal scraper
With double seals + side seal + inner seal + metal scraper
With end seal + side seal + inner seal + LaCS
With double seals + side seal + inner seal + LaCS
With end seal + side seal + inner seal + metal scraper + LaCS
With double seals + side seal + inner seal + metal scraper + LaCS
Seal resistance valueFor the maximum seal resistance value per
LM block when a lubricant is applied on seals
NR/NRS…UU, refer to the corresponding
value provided in table 4.
Table 4 Maximum Seal Resistance Value of Seals NR/NRS…UU
Model No.
NR/NRS 25X
NR/NRS 30
NR/NRS 35
NR/NRS 45
NR/NRS 55
NR/NRS 65
NR/NRS 75
NR/NRS 85
NR/NRS 100
Seal resistance value
15
17
23
24
29
42
42
42
51
Unit: N
a-256
WS
bb1
t1PH
P
W
H1t2
S1
NR/NRS 25X to 45
W
H1t2
t3
S1
NR/NRS 55 to 100
LmaxLmin
T
●Simplified Bellows JSNFor models NR/NRS, a simplified bellows is available. To gain a higher dust-prevention effect,
attach a telescopic cover outside the simplified bellows after the bellows is mounted as shown
in Fig. 7.
JN 25
JN 30
JN 35
JN 45
JN 55
JN 65
JN 75
JN 85
JN 100
48
60
70
86
100
126
145
156
200
25.5
31
35
40.5
49
57.5
64
70.5
82
25.5
31
35
40.5
49
57.5
64
70.5
82
10
14
15
17
20
20
30
30
30
26.6
34
36
47
54
64
80
110
140
4.6
5.5
6
6.5
10
13.5
10.5
15.5
15
13
17
20.5
24
29.5
36.2
34.2
39.5
40
—
—
—
—
18
20
26
28
34
M3✕5R
M4✕8R
M4✕8R
M5✕10R
M5✕10R
M6✕12R
M6✕12R
M6✕12R
M8✕16R
M4✕4R
M4✕4R
M5✕4R
M5✕4R
M5✕4R
M6✕5R
M6✕5R
M6✕5R
M6✕5R
11
15
15
17
20
22
25
39.5
30
1.5
1.5
2
2
2
3.2
3.2
3.2
3.2
NR/NRS 25X
NR/NRS 30
NR/NRS 35
NR/NRS 45
NR/NRS 55
NR/NRS 65
NR/NRS 75
NR/NRS 85
NR/NRS 100
Model
No. W H H1 P b1 t1 t2 t3 S S1Mounting bolt
bA,LAB,LB T
Supported
model
Major dimensions
7
9
10
10
13
13
20
20
20
ALmaxLmin
Unit: mm
Lmin = S: Stroke length (mm)
Lmax = Lmin・A A: Extension rate
S (A-1)
Note: The length of the bellows is calculated as follows.
Model number coding JN25-60/420
zModel number…bellows for NR/NRS25XxBellows dimensions (length when compressed /length when extended)
z x
Table Telescopic cover Simplified bellows
Base
Fig. 7 Example of Mounting the Simplified Bellows
Note 1: When desiring to use the simplified bellows other than in horizontal mount (i.e., vertical, wall and inverted mount),or when desiring a heat-resistant type of bellows, contact .
Note 2: For lubrication when using the simplified bellows, contact .Note 3: When using the simplified bellows, the LM block and LM rail need to be machined so that the bellows can be
mounted. Be sure to indicate that the simplified bellows is required when ordering the LM Guide.
a. Dimensions of the LM Guides
a-257
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a257
●Plate Cover SVFor models NR/NRS, plate covers are avail-
able as an essential means of dust preven-
tion for machine tools. By covering the LM
rail mounting holes with an ultra thin stain-
less steel (SUS304) plate, the plate cover
SV drastically increases sealability, thus to
prevent the penetration of a coolant or cut-
ting chips from the top face of the LM rail,
which was previously impossible.
For the mounting procedure, see page a-27.
Note: When mounting the plate cover, the LM railneeds to be machined. Indicate that theplate cover is required when ordering the LMGuide.
LM rail
Plate cover SV
Fixing jig NT
Slide pieceTension screw
Case fixing bolt
Note: The plate cover is available for models NR35to 100 and NRS35 to 100.
●Dedicated Cap C for LMRail Mounting Holes
If any of the LM rail mounting holes of an LM
Guide is filled with cutting chips or foreign
matter, they may enter the LM block struc-
ture. Entrance of such foreign matter can be
prevented by covering each LM rail mounting
hole with the dedicated cap so that the top of
the mounting holes is on the same level as
the LM rail top face.
Since the dedicated cap C for LM rail mount-
ing holes uses a special synthetic resin with
high oil resistance and high wear resistance,
it is highly durable.
When placing an order, specify the desired
cap type with the corresponding cap number
indicated in table 5.
For the procedure for mounting the cap, see
page a-22.
Table 5 Major Dimensions of Dedicated Cap C
Model
No.
Cap C
model No.
Bolt
used
Major dimensions mm
D H
NR 25X
NR 30
NR 35
NR 45
NR 55
NR 65
NR 85
C 5 M 5 9.8 2.4
C 6 M 6 11.4 2.7
C 8 M 8 14.4 3.7
C12 M12 20.5 4.7
C14 M14 23.5 5.7
C16 M16 26.5 5.7
C22 M22 35.5 5.7
D
H
Dedicated Cap C
a-258
●Steel Tape SPFor models NR/NRS, steel tapes are available as an essential means of dust prevention for
machine tools. By covering the LM rail mounting holes with an ultra thin stainless steel
(SUS304) plate, the steel tape SP further increases sealability, thus to prevent the penetra-
tion of a coolant or cutting chips from the top face of the LM rail, which was previously impos-
sible (when mounting the steel tape, end piece EP can be used as a means to secure the
cover).
For the mounting procedure, see page a-28.
Note: When mounting the steel tape, the LM rail needs to be machined. Indicate that the steel tape isrequired when ordering the LM Guide.
When QZ Lubricator is required, specify the desired type with the corresponding symbol indi-
cated in table 6 (for details of QZ Lubricator, see pages a-19 and a-20).
For supported LM Guide model numbers for QZ Lubricator and overall LM block length with QZ
Lubricator attached (dimension L), see page a-274.
QZ LubricatorTM
Table 6 Parts Symbols for Models NR/NRS with QZ Lubricator Attached
Symbol
QZUU
QZSS
QZDD
QZZZ
QZKK
QZSSHH
QZDDHH
QZZZHH
QZKKHH
Dust prevention accessories for LM Guide with QZ Lubricator attached
With end seal
With end seal + side seal + inner seal
With double seals + side seal + inner seal
With end seal + side seal + inner seal + metal scraper + QZ
With double seals + side seal + inner seal + metal scraper + QZ
With end seal + side seal + inner seal + LaCS + QZ
With double seals + side seal + inner seal + LaCS + QZ
With end seal + side seal + inner seal + metal scraper + LaCS + QZ
With double seals + side seal + inner seal + metal scraper + LaCS + QZ
Note 1: The steel tape is available for models NR25 to 100 and NRS25 to 100.Note 2: With models NR/NRS, balls will fall off if the LM block is removed from the LM rail. Falling of balls
may cause an accident. When removing the LM block from the LM rail, use the LM block remov-ing/mounting jig.
Steel tape SP
End piece EP
Setscrew
Tap for attaching a bellowsFig. 8
LM block
LM block mounting/ removing jig
a. Dimensions of the LM Guides
a-259
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a259
An oil lubricant-only lubrication adapter is available for models NR/NRS.
Even if the LM Guide is installed in an orientation where oil lubrication is difficult, such as wall
mount and inversed mount, the adapter is capable of feeding a constant quantity of lubricant to
the four raceways.
FeaturesThe dedicated lubrication adapter for models
NR-NRS is built in with a constant quantity
distributor. Therefore, the adapter can accu-
rately feed a constant quantity of lubricant to
each raceway regardless of the mounting ori-
entation.
The adapter is economical since it is capable
of constantly feeding the optimum amount of
lubricant and helping eliminate the supply of
surplus lubricant.
To provide pipe arrangement, simply connect
an intermittent lubrication pump widely used
for ordinary machine tools to the greasing
holes (M8) on the front and the side of the
lubrication adapter.
Lubrication plate
Lubrication plate
To lubrication pump
To lubrication pump
Constant quantity distributor
Fig. 9 Structural Drawing
A30N
A35N
A45N
A55N
A65N
A85N
56
66
81
94
119
147
29
33
38
45.5
55.5
68.5
25
25
25
25
25
25
29
35
48
56
67
92
14.5
17
20
22
26.3
34
46
54
67
76
92
114
14
16.5
16.5
20.5
25.5
32
5
6
7
7
11.5
15.5
5.3
5.3
7.8
7.8
7.8
7.8
3.5
4.5
6.6
6.6
9
9
M8✕8
M8✕8
M8✕8
M8✕8
M8✕8
M8✕8
M8✕8
M8✕8
M8✕8
M8✕8
M8✕8
M8✕8
0.03✕4
0.06✕4
Model No. WidthW
HeightM T W1 M1 B E N T1 d M✕R M1✕R1
Quantityper shot(cc/shot)
Major dimensions
Table 7 Dimension Table for Lubrication Adapter
Specifications
W
ME
NN
M1
B
M×R2-M1×R1
W1
T1T
2-d drilled through
Fig. 10
Viscosity range of lubricant used
Discharge
Diameter of pipe connected
Material
32 to 64 ㎜2/s recommended
0.03×4, 0.06×4cc/1shot
φ4, φ6
Aluminum alloy
Unit: mm
Lubrication Adapter
a-260
With models NR-NRS, if the LM block is pulled
out from the LM rail, balls will fall off. To pre-
vent the LM block from being pulled out, end
pieces are mounted before shipment. If
removing the end piece when using the LM
Guide, be sure that the LM block will not
overrun.
The end piece can also be used as a fixing jig
for a steel tape, and is available also for the
LM rail of models SSR, SR and HSR.
A
C
B
T
Fig. 11 End Piece EP for Models NR-NRS
Table 8 Dimension Table for End Piece RP for Models NR-NRS
Model No.
NR/NRS 25X
NR/NRS 30
NR/NRS 35
NR/NRS 45
NR/NRS 55
NR/NRS 65
NR/NRS 75
NR/NRS 85
NR/NRS 100
A
26
31
38
49
57
69.4
81.7
91.4
106.4
B
14
14
16
18
20
22
28
22
25
C
25
31
32.5
41
46.5
59
56
68
73
T
1.5
1.5
2
2
2
3.2
3.2
3.2
3.2
Unit: mm
End Piece EP
a. Dimensions of the LM Guides
a-261
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a261
Table 9 shows the standard lengths and the maximum lengths of models NR/NRS variations. If
the maximum length of the desired LM rail exceeds them, connected rails will be used.
Contact for details.
For the G dimension when a special length is required, we recommend selecting the corre-
sponding G value from the table. The longer the G dimension is, the less stable the G area may
become after installation, thus causing an adverse impact to accuracy.
Standard Length and Maximum Length of the LM Rail
Note 1: The maximum length varies with accuracy grades. Contact for details.
Table 9 Standard Length and Maximum Length of the LM Rail for Models NR/NRS Unit: mm
Model No.
Standard pitch F 40 80 80 105 120 150 150 180 210
15 20 20 22.5 30 35 40 45 40
3000 3000 3000 3000 3000 3000 3000 3000 3000
G
Max length
NR/NRS25X
230270350390470510590630710750830950990
107011101190123013101350143014701550159017101830195020702190231024302470
NR/NRS30
280360440520600680760840920
10001080116012401320140014801560164017201800188019602040220023602520268028403000
NR/NRS35
280360440520600680760840920
10001080116012401320140014801560164017201800188019602040220023602520268028403000
NR/NRS45
570675780885990
1095120013051410151516201725183019352040214522502355246025652670277528802985
NR/NRS55
780900
10201140126013801500162017401860198021002220234024602580270028202940
NR/NRS65
1270157020202620
NR/NRS75
1280158020302630
NR/NRS85
1530189022502610
NR/NRS100
1340176021802600
L0
F FG G
StandardLMraillength(L
0)
Note 2: If connected rails are not allowed and a greater length than the maximum values above is required,contact .
a. Dimensions of the LM Guides
a-263
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a263
a-262
Model No.
Externaldimensions LM block dimensions
Height
M
Width
W
Length
L B C S×R L1 T K N f0 E e0 D0
Grease
nipple
WidthW1
0-0.05
LM rail dimensions Basic loadrating
Static permissible moment kN-m* Mass
W2
HeightM1
PitchF d1×d2×h
C0
kN
C
kN
LM block
kg
LM rail
kg/m
MC
1 block
W
W2 W1
L1 e0
f0
L
CB
(K) M
Tφd2
**4-φD0
φd1
F
Nh
M1
(E) 4-S×R
L1 e0
f0
L
C
φd2
**4-φD0
φd1F
Nh
M1
(E) 6-S×R
NR 25XRNR 25XLRNR 30RNR 30LRNR 35RNR 35LRNR 45RNR 45LRNR 55RNR 55LRNR 65RNR 65LRNR 75RNR 75LRNR 85RNR 85LRNR 100RNR 100LR
31
38
44
52
63
75
83
90
105
50
60
70
86
100
126
145
156
200
82.810298
120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8
32
40
50
60
65
76
95
100
130
3550406050726080759570
11080
13080
140150200
M6✕8
M8✕10
M8✕12
M10✕17
M12✕18
M16✕20
M18✕25
M18✕25
M18✕27
62.481.670.993.477.9
103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4
9.7
9.7
11.7
14.7
17.5
21.5
25.3
27.3
34.3
25.5
31
35
40.5
49
60
68
73
85
7
7
8
10
11
16
18
20
23
7
7
8
8
10
15
17
20
23
12
12
12
16
16
16
16
16
10
4
5
6
7
8
9
9
10
12
3.9
3.9
5.2
5.2
5.2
8.2
8.2
8.2
8.2
B-M6F
B-M6F
B-M6F
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/4
25
28
34
45
53
63
75
85
100
12.5
16
18
20.5
23.5
31.5
35
35.5
50
17
21
24.5
29
36.5
43
44
48
57
40
80
80
105
120
150
150
180
210
6✕9.5✕8.5
7✕11✕9
9✕14✕12
14✕20✕17
16✕23✕20
18✕26✕22
22✕32✕26
24✕35✕28
26✕39✕32
334448.764.963.185.796
126131170189260271355336435479599
84.6113122162155210231303310402436600610800751972
10401300
0.7711.261.262.181.753.143.375.935.398.878.76
16.814.425.420.334.73447.3
3.866.296.63
10.69.47
15.517.72827.843.844.779.973.3
118102160167238
0.4690.7750.7781.331.081.922.073.593.35.415.39
10.18.91
15.412.42120.729.2
2.333.824.056.475.89.43
10.816.916.926.627.34844.771.462.696.2
101146
0.911.211.471.952.243.034.455.826.989.05
11.615.919.325.226.834.643.454.6
0.430.550.7411.11.422.83.34.368.78.7
11.612.315.821.826.1
3.1
4.3
6.2
9.8
14.5
20.3
24.6
30.5
42.6
Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Unit: mmModel NR-R Model NR-LR
Models NR-R NR-LRModels NR-R NR-LR
Model number coding NR35 LR 2 QZ KKHH C0 +1240L P Z-Ⅱ
zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.
z . ⁄0,mnbvcx
Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.
2 blocks inclose contact1 block
MA
1 block 2 blocks inclose contact
MB
Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.
will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.
Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-
tacting with each other
a. Dimensions of the LM Guides
a-265
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a265
a-264 Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model No.
Externaldimensions LM block dimensions
Height
M
Width
W
Length
L B C S×R L1 T K N f0 E e0 D0
Grease
nipple
WidthW1
0-0.05
LM rail dimensions Basic loadrating
Static permissible moment kN-m* Mass
W2
HeightM1
PitchF d1×d2×h
C0
kN
C
kN
LM block
kg
LM rail
kg/m
MC
1 block
NRS 25XRNRS 25XLRNRS 30RNRS 30LRNRS 35RNRS 35LRNRS 45RNRS 45LRNRS 55RNRS 55LRNRS 65RNRS 65LRNRS 75RNRS 75LRNRS 85RNRS 85LRNRS 100RNRS 100LR
31
38
44
52
63
75
83
90
105
50
60
70
86
100
126
145
156
200
82.810298
120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8
32
40
50
60
65
76
95
100
130
3550406050726080759570
11080
13080
140150200
M6✕8
M8✕10
M8✕12
M10✕17
M12✕18
M16✕20
M18✕25
M18✕25
M18✕27
62.481.670.993.477.9
103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4
9.7
9.7
11.7
14.7
17.5
21.5
25.3
27.3
34.3
25.5
31
35
40.5
49
60
68
73
85
7
7
8
10
11
16
18
20
23
7
7
8
8
10
15
17
20
23
12
12
12
16
16
16
16
16
10
4
5
6
7
8
9
9
10
12
3.9
3.9
5.2
5.2
5.2
8.2
8.2
8.2
8.2
B-M6F
B-M6F
B-M6F
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/4
25
28
34
45
53
63
75
85
100
12.5
16
18
20.5
23.5
31.5
35
35.5
50
17
21
24.5
29
36.5
43
44
48
57
40
80
80
105
120
150
150
180
210
6✕9.5✕8.5
7✕11✕9
9✕14✕12
14✕20✕17
16✕23✕20
18✕26✕22
22✕32✕26
24✕35✕28
26✕39✕32
25.934.538.25149.567.275.398.8
103133148204212278264342376470
59.879.786.1
115109148163214220284309425431566531687737920
0.5680.9260.9261.61.282.292.474.343.976.496.45
12.310.618.614.925.425.134.6
2.844.64.867.836.92
11.31320.520.53232.958.653.88775.3
117123174
0.5680.9260.9261.61.282.292.474.343.976.496.45
12.310.618.614.925.425.134.6
2.844.64.867.836.92
11.31320.520.53232.958.653.88775.3
117123174
0.6330.8461.021.361.542.093.094.064.866.288.11
11.113.417.618.724.230.438.1
0.430.550.7411.11.422.83.34.368.78.7
11.612.315.821.826.1
3.1
4.3
6.2
9.8
14.5
20.3
24.6
30.5
42.6
Unit: mm
W
W2 W1
L1 e0
f0
L
CB
(K) M
Tφd2
**4-φD0
φd1
M1
F
Nh
(E) 4-S×R L1 e0
f0
L
C
φd2
**4-φD0
φd1F
hN
M1
(E) 6-S×R
Model NRS-R Model NRS-LR
Models NRS-R NRS-LRModels NRS-R NRS-LR
Model number coding NRS45 LR 2 QZ ZZHH C0 +1200L P Z-Ⅱ
zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.
z . ⁄0,mnbvcx
Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.
Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.
will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.
Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-
tacting with each other
2 blocks inclose contact1 block
MA
1 block 2 blocks inclose contact
MB
a-266
a. Dimensions of the LM Guides
a-267
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a267
W
MT
W2 W1
T1
L1 e0
f0
L
CB
(K)
φd2
**4-φD0
φd1
M1
F
Nh
(E) 4-S
L1 e0
f0
L
C
φd2
**4-φD0
φd1F
Nh
M1
(E) 6-S
Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model No.
Externaldimensions LM block dimensions
Height
M
Width
W
Length
L B C S×R L1 T T1 K N f0 E e0 D0
Grease
nipple
WidthW1
0-0.05
LM rail dimensions Basic loadrating
Static permissible moment kN-m* Mass
W2
HeightM1
PitchF d1×d2×h
C0
kN
C
kN
LM block
kg
LM rail
kg/m
MC
1 block
NR 25XA NR 25XLANR 30ANR 30LANR 35ANR 35LANR 45ANR 45LANR 55ANR 55LANR 65ANR 65LANR 75ANR 75LANR 85ANR 85LANR 100ANR 100LA
31
38
44
52
63
75
83
90
105
72
90
100
120
140
170
195
215
260
82.810298
120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8
59
72
82
100
116
142
165
185
220
45
52
62
80
95
110
130
140
150200
M8✕16
M10✕18
M10✕20
M12✕22
M14✕24
M16✕28
M18✕30
M20✕34
M20✕38
62.481.670.993.477.9
103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4
14.8
16.8
18.8
20.5
22.5
26
28
32
35
16
18
20
22
24
28
30
34
38
25.5
31
35
40.5
49
60
68
73
85
7
7
8
10
11
16
18
20
23
7
7
8
8
10
15
17
20
23
12
12
12
16
16
16
16
16
10
4
5
6
7
8
9
9
10
12
3.9
3.9
5.2
5.2
5.2
8.2
8.2
8.2
8.2
B-M6F
B-M6F
B-M6F
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/4
25
28
34
45
53
63
75
85
100
23.5
31
33
37.5
43.5
53.5
60
65
80
17
21
24.5
29
36.5
43
44
48
57
40
80
80
105
120
150
150
180
210
6✕9.5✕8.5
7✕11✕9
9✕14✕12
14✕20✕17
16✕23✕20
18✕26✕22
22✕32✕26
24✕35✕28
26✕39✕32
334448.764.963.185.796
126131170189260271355336435479599
84.6113122162155210231303310402436600610800751972
10401300
0.7711.261.262.181.753.143.375.935.398.878.76
16.814.425.420.334.73447.3
3.866.296.63
10.69.47
15.517.72827.843.844.779.973.3
118102160167238
0.4690.7750.7781.331.081.922.073.593.35.415.39
10.18.91
15.412.42120.729.2
2.333.824.056.475.89.43
10.816.916.926.627.34844.771.462.696.2
101146
0.911.211.471.952.243.034.455.826.989.05
11.615.919.325.226.834.643.454.6
0.580.771.11.41.51.92.73.54.45.77.6
10.911.31516.220.726.731.2
3.1
4.3
6.2
9.8
14.5
20.3
24.6
30.5
42.6
Unit: mmModel NR-A Model NR-LA
Models NR-A NR-LAModels NR-A NR-LA
Model number coding NR35 A 2 QZ KKHH C0 +1400L P Z-Ⅱ
zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.
z .,mnbvcx ⁄0
Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.
2 blocks inclose contact1 block
MA
1 block 2 blocks inclose contact
MB
Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.
will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.
Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-
tacting with each other
a. Dimensions of the LM Guides
a-269
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a269
a-268
Model No.
Externaldimensions LM block dimensions
Height
M
Width
W
Length
L B C S×R L1 T T1 K N f0 E e0 D0
Grease
nipple
WidthW1
0-0.05
LM rail dimensions Basic loadrating
Static permissible moment kN-m* Mass
W2
HeightM1
PitchF d1×d2×h
C0
kN
C
kN
LM block
kg
LM rail
kg/m
MC
1 block
NRS 25XA NRS 25XLANRS 30ANRS 30LANRS 35ANRS 35LANRS 45ANRS 45LANRS 55ANRS 55LANRS 65ANRS 65LANRS 75ANRS 75LANRS 85ANRS 85LANRS 100ANRS 100LA
31
38
44
52
63
75
83
90
105
72
90
100
120
140
170
195
215
260
82.810298
120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8
59
72
82
100
116
142
165
185
220
45
52
62
80
95
110
130
140
150200
M8✕16
M10✕18
M10✕20
M12✕22
M14✕24
M16✕28
M18✕30
M20✕34
M20✕38
62.481.670.993.477.9
103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4
14.8
16.8
18.8
20.5
22.5
26
28
32
35
16
18
20
22
24
28
30
34
38
25.5
31
35
40.5
49
60
68
73
85
7
7
8
10
11
16
18
20
23
7
7
8
8
10
15
17
20
23
12
12
12
16
16
16
16
16
10
4
5
6
7
8
9
9
10
12
3.9
3.9
5.2
5.2
5.2
8.2
8.2
8.2
8.2
B-M6F
B-M6F
B-M6F
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/4
25
28
34
45
53
63
75
85
100
23.5
31
33
37.5
43.5
53.5
60
65
80
17
21
24.5
29
36.5
43
44
48
57
40
80
80
105
120
150
150
180
210
6✕9.5✕8.5
7✕11✕9
9✕14✕12
14✕20✕17
16✕23✕20
18✕26✕22
22✕32✕26
24✕35✕28
26✕39✕32
25.934.538.25149.567.275.398.8
103133148204212278264342376470
59.879.786.1
115109148163214220284309425431566531687737920
0.5680.9260.9261.61.282.292.474.343.976.496.45
12.310.618.614.925.425.134.6
2.844.64.867.836.92
11.31320.520.53232.958.653.88775.3
117123174
0.5680.9260.9261.61.282.292.474.343.976.496.45
12.310.618.614.925.425.134.6
2.844.64.867.836.92
11.31320.520.53232.958.653.88775.3
117123174
0.6330.8461.021.361.542.093.094.064.866.288.11
11.113.417.618.724.230.438.1
0.580.771.11.41.51.92.73.54.45.77.6
10.911.31516.220.726.731.2
3.1
4.3
6.2
9.8
14.5
20.3
24.6
30.5
42.6
Unit: mm
Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
W
W2 W1
L1 e0
f0
L
CB
(K) MTT1
φd2
**4-φD0
φd1F
Nh
M1
(E) 4-S L1 e0
f0
L
C
φd2
**4-φD0
φd1
F
Nh
M1
(E) 6-S
Model NRS-A Model NRS-LA
Models NRS-A NRS-LAModels NRS-A NRS-LA
Model number coding NRS45 LA 2 QZ SSHH C0 +2040L P Z-Ⅱ
zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.
z . ⁄0,mnbvcx
Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.
2 blocks inclose contact1 block
MA
1 block 2 blocks inclose contact
MB
Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.
will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.
Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-
tacting with each other
a. Dimensions of the LM Guides
a-271
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a271
a-270
W
W2 W1
L1 e0
f0
L
CB
(K) Mt T T1
φd2
**4-φD0
φd1F
Nh
M1
(E) 4-φH
L1 e0
f0
L
C
φd2
6-φH
**4-φD0
φd1F
Nh
M1
(E)
Model No.
Externaldimensions LM block dimensions
Height
M
Width
W
Length
L B C H L1 t T T1 K N f0 E e0 D0
Grease
nipple
WidthW1
0-0.05
LM rail dimensions Basic loadrating
Static permissible moment kN-m* Mass
W2
HeightM1
PitchF d1×d2×h
C0
kN
C
kN
LM block
kg
LM rail
kg/m
MC
1 block
NR 25XB NR 25XLBNR 30BNR 30LBNR 35BNR 35LBNR 45BNR 45LBNR 55BNR 55LBNR 65BNR 65LBNR 75BNR 75LBNR 85BNR 85LBNR 100BNR 100LB
31
38
44
52
63
75
83
90
105
72
90
100
120
140
170
195
215
260
82.8102
98120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8
59
72
82
100
116
142
165
185
220
45
52
62
80
95
110
130
140
150200
7
9
9
11
14
16
18
18
20
62.481.670.993.477.9
103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4
16
18
20
22
24
28
30
34
38
14.8
16.8
18.8
20.5
22.5
26
28
32
35
12
14
16
20
22
25
26
28
32
25.5
31
35
40.5
49
60
68
73
85
7
7
8
10
11
16
18
20
23
7
7
8
8
10
15
17
20
23
12
12
12
16
16
16
16
16
10
4
5
6
7
8
9
9
10
12
3.9
3.9
5.2
5.2
5.2
8.2
8.2
8.2
8.2
B-M6F
B-M6F
B-M6F
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/4
25
28
34
45
53
63
75
85
100
23.5
31
33
37.5
43.5
53.5
60
65
80
17
21
24.5
29
36.5
43
44
48
57
40
80
80
105
120
150
150
180
210
6✕9.5✕8.5
7✕11✕9
9✕14✕12
14✕20✕17
16✕23✕20
18✕26✕22
22✕32✕26
24✕35✕28
26✕39✕32
334448.764.963.185.796
126131170189260271355336435479599
84.6113122162155210231303310402436600610800751972
10401300
0.7711.261.262.181.753.143.375.935.398.878.76
16.814.425.420.334.73447.3
3.866.296.63
10.69.47
15.517.72827.843.844.779.973.3
118102160167238
0.4690.7750.7781.331.081.922.073.593.35.415.39
10.18.91
15.412.42120.729.2
2.333.824.056.475.89.43
10.816.916.926.627.34844.771.462.696.2
101146
0.911.211.471.952.243.034.455.826.989.05
11.615.919.325.226.834.643.454.6
0.580.771.11.41.51.92.73.54.45.77.6
10.911.31516.220.726.731.2
3.1
4.3
6.2
9.8
14.5
20.3
24.6
30.5
42.6
Unit: mm
Model number coding NR35 B 2 QZ DDHH C0 +1080L P Z-Ⅱ
zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.
z . ⁄0,mnbvcx
Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
Model NR-B Model NR-LB
Models NR-B NR-LBModels NR-B NR-LB
Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.
2 blocks inclose contact1 block
MA
1 block 2 blocks inclose contact
MB
Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.
will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.
Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-
tacting with each other
a. Dimensions of the LM Guides
a-273
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a273
a-272
Model No.
Externaldimensions LM block dimensions
Height
M
Width
W
Length
L B C H L1 t T T1 K N f0 E e0 D0
Grease
nipple
WidthW1
0-0.05
LM rail dimensions Basic loadrating
Static permissible moment kN-m* Mass
W2
HeightM1
PitchF d1×d2×h
C0
kN
C
kN
LM block
kg
LM rail
kg/m
MC
1 block
NRS 25XB NRS 25XLBNRS 30BNRS 30LBNRS 35BNRS 35LBNRS 45BNRS 45LBNRS 55BNRS 55LBNRS 65BNRS 65LBNRS 75BNRS 75LBNRS 85BNRS 85LBNRS 100BNRS 100LB
31
38
44
52
63
75
83
90
105
72
90
100
120
140
170
195
215
260
82.8102
98120.5109.5135139171162.8200185.6245.6218274246.7302.8288.8328.8
59
72
82
100
116
142
165
185
220
45
52
62
80
95
110
130
140
150200
7
9
9
11
14
16
18
18
20
62.481.670.993.477.9
103.4105137123.6160.8143.6203.6170.2226.2194.9251223.4263.4
16
18
20
22
24
28
30
34
38
14.8
16.8
18.8
20.5
22.5
26
28
32
35
12
14
16
20
22
25
26
28
32
25.5
31
35
40.5
49
60
68
73
85
7
7
8
10
11
16
18
20
23
7
7
8
8
10
15
17
20
23
12
12
12
16
16
16
16
16
10
4
5
6
7
8
9
9
10
12
3.9
3.9
5.2
5.2
5.2
8.2
8.2
8.2
8.2
B-M6F
B-M6F
B-M6F
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/8
B-PT1/4
25
28
34
45
53
63
75
85
100
23.5
31
33
37.5
43.5
53.5
60
65
80
17
21
24.5
29
36.5
43
44
48
57
40
80
80
105
120
150
150
180
210
6✕9.5✕8.5
7✕11✕9
9✕14✕12
14✕20✕17
16✕23✕20
18✕26✕22
22✕32✕26
24✕35✕28
26✕39✕32
25.934.538.25149.567.275.398.8
103133148204212278264342376470
59.879.786.1
115109148163214220284309425431566531687737920
0.5680.9260.9261.61.282.292.474.343.976.496.45
12.310.618.614.925.425.134.6
2.844.64.867.836.92
11.31320.520.53232.958.653.88775.3
117123174
0.5680.9260.9261.61.282.292.474.343.976.496.45
12.310.618.614.925.425.134.6
2.844.64.867.836.92
11.31320.520.53232.958.653.88775.3
117123174
0.6330.8461.021.361.542.093.094.064.866.288.11
11.113.417.618.724.230.438.1
0.580.771.11.41.51.92.73.54.45.77.6
10.911.31516.220.726.731.2
3.1
4.3
6.2
9.8
14.5
20.3
24.6
30.5
42.6
Unit: mm
Model number coding NRS35 B 2 QZ KKHH C0 +2040L P Z-Ⅱ
zModel number xType of LM block cNo. of LM blocks used on the same rail vWith QZ LubricatorbDust prevention accessory symbol (see page a-255) nRadial clearance symbol (see page a-34)mLM rail length (in mm) ,Accuracy symbol (see page a-38) .With plate cover or steel tape**⁄0No. of rails used on the same plane**Specify the plate cover or the steel tape.
z . ⁄0,mnbvcx
Standard Length and Maximum Length of the LM Rail P. a-261 Selecting a Model Number Refer to the " General Catalog - Technical Descriptions of the Products," provided separately
W
W2 W1
L1 e0
f0
L
CB
(K) Mt T T1
φd2
**4-φD0
φd1F
Nh
M1
(E) 4-φH
L1 e0
f0
L
C
φd2
6-φH
**4-φD0
φd1F
Nh
M1
(E)
Model NRS-B Model NRS-LB
Models NRS-B NRS-LBModels NRS-B NRS-LB
Note This model number indicates that a single-rail unit constitutes one set (i.e., required number ofsets when 2 rails are used in parallel is 2 at a minimum).Those models equipped with QZ Lubricator cannot have a grease nipple.
2 blocks inclose contact1 block
MA
1 block 2 blocks inclose contact
MB
Note Pilot holes for side nipples** are not drilled through in order to prevent foreign matter from enter-ing the product.
will mount grease nipples per your request. Therefore, do not use the side nipple pilotholes** for purposes other than mounting a grease nipple.
Static permissible moment* 1 block: static permissible moment value with 1 LM block2 blocks: static permissible moment value with 2 blocks closely con-
tacting with each other
a-274
Overall LM Block Length with Options■Overall LM Block Length (Dimension L) of Models NR/NRS with aDust Prevention Accessory Attached
Model No.
NR/NRS 25XR/XA/XB
NR/NRS 25XLR/XLA/XLB
NR/NRS 30R/A/B
NR/NRS 30LR/LA/LB
NR/NRS 35R/A/B
NR/NRS 35LR/LA/LB
NR/NRS 45R/A/B
NR/NRS 45LR/LA/LB
NR/NRS 55R/A/B
NR/NRS 55LR/LA/LB
NR/NRS 65R/A/B
NR/NRS 65LR/LA/LB
NR/NRS 75R/A/B
NR/NRS 75LR/LA/LB
NR/NRS 85R/A/B
NR/NRS 85LR/LA/LB
NR/NRS 100R/A/B
NR/NRS 100LR/LA/LB
UU SS DD ZZ KK SSHH DDHH ZZHH KKHH
82.8
102
98
120.5
109.5
135
139
171
162.8
200
185.6
245.6
218
274
246.7
302.8
288.8
328.8
82.8
102
98
120.5
109.5
135
139
171
162.8
200
185.6
245.6
218
274
246.7
302.8
288.8
328.8
90.4
109.6
107
129.5
119.7
145.2
149.2
181.2
173
210.2
196.2
256.2
229
285
257.7
313.8
297.8
337.8
89.2
108.4
104.4
126.9
117.1
142.6
147.4
179.4
171.4
208.6
194.2
254.2
226.6
282.6
256.1
312.2
295.6
335.6
96.8
116
113.4
135.9
127.3
152.8
157.6
189.6
181.6
218.8
204.8
264.8
237.6
293.6
267.1
323.2
307.2
347.2
100.1
119.3
119.3
141.8
131.1
156.6
164.4
196.4
188.1
225.3
214.9
274.9
—
—
—
—
—
—
107.7
126.9
128.3
150.8
141.3
166.8
174.6
206.6
198.3
235.5
225.5
285.5
—
—
—
—
—
—
102.5
121.7
121.7
144.2
133.5
159
167.6
199.6
191.3
228.5
218.1
278.1
—
—
—
—
—
—
110.1
129.3
130.7
153.2
143.7
169.2
177.8
209.8
201.5
238.7
228.7
288.7
—
—
—
—
—
—
Unit: mm
Model No.
NR/NRS 25XR/XA/XB
NR/NRS 25XLR/XLA/XLB
NR/NRS 30R/A/B
NR/NRS 30LR/LA/LB
NR/NRS 35R/A/B
NR/NRS 35LR/LA/LB
NR/NRS 45R/A/B
NR/NRS 45LR/LA/LB
NR/NRS 55R/A/B
NR/NRS 55LR/LA/LB
NR/NRS 65R/A/B
NR/NRS 65LR/LA/LB
QZUU QZSS QZDD QZZZ QZKK QZSSHH QZDDHH QZZZHH QZKKHH
105.2
124.4
120.4
142.9
142.7
168.2
172.2
204.2
204.8
242
227.6
287.6
105.2
124.4
120.4
142.9
142.7
168.2
172.2
204.2
204.8
242
227.6
287.6
112.8
132
129.4
151.9
152.9
178.4
182.4
214.4
215
252.2
238.2
298.2
110.9
130.1
126.1
148.6
149.5
175
179.8
211.8
213.5
250.7
236.3
296.3
118.5
137.7
135.1
157.6
159.7
185.2
190
222
223.7
260.9
246.9
306.9
122.5
141.7
141.7
164.2
164.3
189.8
197.6
229.6
231.3
268.5
258.1
318.1
130.1
149.3
150.7
173.2
174.5
200
207.8
239.8
241.5
278.7
268.7
328.7
124.9
144.1
144.1
166.6
166.7
192.2
200.8
232.8
234.5
271.7
261.3
321.3
132.5
151.7
153.1
175.6
176.9
202.4
211
243
244.7
281.9
271.9
331.9
■Overall LM Block Length (Dimension L) of Models NR/NRS withQZ Lubricator Attached Unit: mm
Note: "-" indicates not available.
a. Dimensions of the LM Guides
a-275
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a275
Basic Specifications of LaCS®
① Service temperature range of LaCS: -20℃
to +80℃
② Resistance of LaCS: indicated in table 10
Table 10 Resistance of LaCS
Model No.
NR/NRS 25
NR/NRS 30
NR/NRS 35
NR/NRS 45
NR/NRS 55
NR/NRS 65
Resistance of LaCS
8.1
13.4
15.5
23.3
28.6
39.6
Unit: N
Note 1: Each resistance value in the table onlyconsists of that of LaCS, and does notinclude sliding resistances of seals andother accessories.
Note 2: For the maximum service speed of LaCS,contact .
a-276
Grease Nipple
■For LM Guide Models with Dust Prevention Accessories SSHH,DDHH, ZZHH or KKHH
LM Guide models with dust prevention accessories SSHH, DDHH, ZZHH or KKHH have the
grease nipple in the location indicated in Fig. 12. Table 11 shows incremental dimensions with
the grease nipple.
Grease nipple H
LaCS EndplateK :Datum
plane
Fig. 12
Grease nipple mounting location for models NR-NRS Model No.
NR/NRS 25X A/B/LA/LB
NR/NRS 25X R/LR
NR/NRS 30A/B/LA/LB
NR/NRS 30R/LR
NR/NRS 35A/B/LA/LB
NR/NRS 35R/LR
NR/NRS 45A/B/LA/LB
NR/NRS 45R/LR
NR/NRS 55A/B/LA/LB
NR/NRS 55R/LR
NR/NRS 65A/B/LA/LB
NR/NRS 65R/LR
Incremental dimension with grease nipple H
—
4.8
—
4.5
—
7.4
—
7.4
—
6.9
—
15.3
Nipple type
PB1021B
PB1021B
PB1021B
PB1021B
A-M6F
A-M6F
A-M6F
A-M6F
A-M6F
A-M6F
A-PT1/8
A-PT1/8
Model number coding NRS25 XA 2 QZ DDHH +1110L P -Ⅱ
zLM Guide model numberxQZ : with QZ Lubricator, without grease nippleNo symbol: without QZ Lubricator, with grease nipple (see Fig. 12)
cDust prevention accessory symbol (see page a-255)
z cx
Note 1: QZ Lubricator and LaCS are not sold alone.Note 2: Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring both QZ
Lubricator and the grease nipple to be attached, contact .
Unit: mm
Note: When desiring the mounting location for the grease nipple other than the one indicated in Fig. 12,contact .
Table 11
■For LM Guide Models with Dust Prevention Accessories UU or SSFor the mounting location of the grease nipple (N) and its incremental dimension (E) when dust
prevention accessories UU or SS are attached, see the corresponding table of dimensions.
■For LM Guide Models with Dust Prevention Accessories DD, ZZ or KKFor the mounting location of the grease nipple and its incremental dimension when dust pre-
vention accessories DD, ZZ or KK are attached, contact .
Those LM Guide models without QZ Lubricator are equipped with a grease nipple. Fig. 12
shows the mounting location for the grease nipple. Please note that attaching the grease nip-
ple increases the LM block width.
a. Dimensions of the LM Guides
a-277
Ultra-heavy-load,High-rigidityLMGuideModelsNRandNRS
a277
■Laminated Contact Scraper LaCS for LM GuidesService environment●Be sure the service temperature range of Laminated Contact Scraper LaCS is between -20℃
and +80℃, and do not clean LaCS in an organic solvent or white kerosene, or leave it
unpacked.
Impregnating oil●The lubricant impregnated into Laminated Contact Scraper LaCS is used to increase the slid-
ing capability of LaCS itself. For lubrication of the LM Guide, attach QZ Lubricator or the
grease nipple.
Function●The intended role of Laminated Contact Scraper LaCS is to remove foreign matter or liquids.
To seal oils, end seals are needed.
Design●When using Laminated Contact Scraper LaCS, be sure to use the dedicated cap C for LM rail
mounting holes or an appropriate form of cover.
■QZ Lubricator for LM GuidesHandling●Dropping or hitting this product may damage it. Take much care when handling it.
●Do not clean it with an organic solvent or white kerosene.
●Do not leave it unpacked for a long period of time.
●Do not block the air vent with grease or the like.
Service temperature range●Be sure the service temperature of this product is between -10℃ and +50℃. When using it
beyond the service temperature range, contact .
Use in a special environment●When using it in a special environment, contact .
Precaution on selection●Be sure the stroke is longer than the overall length of the LM block length attached with QZ
Lubricator.
Corrosion prevention of LM Guides●QZ Lubricator is a lubricating device designed to feed a minimum amount of oil to the ball
raceway of LM rails, and does not provide corrosion prevention to the whole LM Guide. When
using it in an environment subject to a coolant or the like, we strongly recommend applying
grease or other anti-corrosion agent to the mounting base surface and the LM rail end sur-
faces of the LM Guide as an anti-corrosion measure.
Precautions on Use